Caseless projectile

Abstract

Disclosed herein is a caseless projectile, in which a bullet head and a projectile body structure are fixedly arranged with each other. The caseless projectile can be fired in a barrel without a step of discharging the case; further, the caseless projectile's projectile bottom has a plurality of blade-shaped score lines. When fired, the score line are transformed into a plurality of nozzle structures by the impact force, so that the high-pressure gas generated by the burning of powder is ejected through the nozzle structures, further offering the caseless projectile a rotational torque and achieving the effect of accurate firing without rifling.

What is claimed is: 
     
       1. A caseless projectile, including: an elastic body, including: an elastic body shell; an elastic head, the elastic head having a first interface and a second interface; and an inner chamber for filling with a certain volume of gunpowder, the inner chamber having a first end and an axially opposite second end; a projectile bottom for closing the second end, which includes: an impact center area, a fan blade area and a peripheral area; the impact center area is located in the central area of the projectile bottom, which includes: a primer for impact ignition; an anvil for impact by a firing pin of a barrel during firing; and a flame port for allowing flame generated after the primer is detonated to pass through and ignite gunpowder; and the fan blade area located in an area surrounding the impact center area, the fan blade area containing a plurality of scribe lines, wherein the scribe lines in the firing process are in the middle and a plurality of nozzle structures are present due to impact force, so that high-pressure gas produced by ignition of the gunpowder is ejected from the nozzle structures; and the peripheral area located between an outer edge of the fan blade area and a circumference of the projectile bottom; wherein thickness of the peripheral area is thicker than thickness of the central impact area and the fan blade area. 
     
     
       2. The caseless projectile of  claim 1 , wherein the first interface is covered by a part of the elastic body shell. 
     
     
       3. The caseless projectile of  claim 1 , wherein the first end is closed by the second interface. 
     
     
       4. The caseless projectile of  claim 1 , wherein the scribe line includes: a radial scribe line extending from an end point on the circumference of the impact center area beyond the fan area to another end point on the rim; and an arc scribe line connected to the end point of the radial scribe line located at the outer edge of the blade area. 
     
     
       5. The caseless projectile of  claim 1 , wherein the elastic head is flat, round, tapered or armor-piercing pointed. 
     
     
       6. The caseless projectile of  claim 1 , wherein the gunpowder is liquid, solid powder, solid granular, gaseous, or a combination thereof. 
     
     
       7. The caseless projectile of  claim 1 , wherein a radius of the impact center area is about 0.1 of radius of the projectile bottom. 
     
     
       8. The caseless projectile of  claim 1 , wherein a thickness of the fan blade area is about 0.35 of thickness of the peripheral area. 
     
     
       9. The caseless projectile of  claim 4 , wherein a length of the radial scribe line is about 0.6 of radius of the projectile bottom. 
     
     
       10. The caseless projectile of  claim 4 , wherein an arc length of the arc line is about 0.8 of the radius of the projectile bottom. 
     
     
       11. The caseless projectile of  claim 1 , wherein a thickness of the scribe line is about 0.025. 
     
     
       12. The caseless projectile of  claim 4 , wherein a thickness of the scribe line is about 0.025. 
     
     
       13. The caseless projectile of  claim 1 , wherein the projectile bottom has a plurality of bullet grooves which are used with a plurality of barrel elements in the barrel to eject unfired projectiles from the barrel. 
     
     
       14. The caseless projectile of  claim 1 , wherein the elastic body shell has a coupling structure for combining with the elastic head. 
     
     
       15. The caseless projectile of  claim 1 , wherein the elastic body shell is made of copper or its alloy. 
     
     
       16. The caseless projectile of  claim 1 , wherein the elastic head is made of lead.